--- a/toolkit/components/protobuf/src/google/protobuf/wire_format_lite.h
+++ b/toolkit/components/protobuf/src/google/protobuf/wire_format_lite.h
@@ -35,16 +35,17 @@
 //  Sanjay Ghemawat, Jeff Dean, and others.
 //
 // This header is logically internal, but is made public because it is used
 // from protocol-compiler-generated code, which may reside in other components.
 
 #ifndef GOOGLE_PROTOBUF_WIRE_FORMAT_LITE_H__
 #define GOOGLE_PROTOBUF_WIRE_FORMAT_LITE_H__
 
+#include <algorithm>
 #include <string>
 #include <google/protobuf/stubs/common.h>
 #include <google/protobuf/message_lite.h>
 #include <google/protobuf/io/coded_stream.h>  // for CodedOutputStream::Varint32Size
 
 namespace google {
 
 namespace protobuf {
--- a/toolkit/components/protobuf/src/google/protobuf/wire_format.cc
+++ b/toolkit/components/protobuf/src/google/protobuf/wire_format.cc
@@ -819,30 +819,35 @@ void WireFormat::SerializeFieldWithCachedSizes(
       HANDLE_PRIMITIVE_TYPE(SFIXED64,  int64, SFixed64,  Int64)
 
       HANDLE_PRIMITIVE_TYPE(FLOAT , float , Float , Float )
       HANDLE_PRIMITIVE_TYPE(DOUBLE, double, Double, Double)
 
       HANDLE_PRIMITIVE_TYPE(BOOL, bool, Bool, Bool)
 #undef HANDLE_PRIMITIVE_TYPE
 
-#define HANDLE_TYPE(TYPE, TYPE_METHOD, CPPTYPE_METHOD)                       \
-      case FieldDescriptor::TYPE_##TYPE:                                     \
-        WireFormatLite::Write##TYPE_METHOD(                                  \
-              field->number(),                                               \
-              field->is_repeated() ?                                         \
-                message_reflection->GetRepeated##CPPTYPE_METHOD(             \
-                  message, field, j) :                                       \
-                message_reflection->Get##CPPTYPE_METHOD(message, field),     \
-              output);                                                       \
+      case FieldDescriptor::TYPE_GROUP:
+        WireFormatLite::WriteGroup(
+              field->number(),
+              field->is_repeated() ?
+                message_reflection->GetRepeatedMessage(
+                  message, field, j) :
+                message_reflection->GetMessage(message, field),
+              output);
         break;
 
-      HANDLE_TYPE(GROUP  , Group  , Message)
-      HANDLE_TYPE(MESSAGE, Message, Message)
-#undef HANDLE_TYPE
+      case FieldDescriptor::TYPE_MESSAGE:
+        WireFormatLite::WriteMessage(
+              field->number(),
+              field->is_repeated() ?
+                message_reflection->GetRepeatedMessage(
+                  message, field, j) :
+                message_reflection->GetMessage(message, field),
+              output);
+        break;
 
       case FieldDescriptor::TYPE_ENUM: {
         const EnumValueDescriptor* value = field->is_repeated() ?
           message_reflection->GetRepeatedEnum(message, field, j) :
           message_reflection->GetEnum(message, field);
         if (is_packed) {
           WireFormatLite::WriteEnumNoTag(value->number(), output);
         } else {
--- b/toolkit/components/protobuf/src/google/protobuf/io/gzip_stream.cc
+++ a/toolkit/components/protobuf/src/google/protobuf/io/gzip_stream.cc
@@ -28,17 +28,16 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Author: brianolson@google.com (Brian Olson)
 //
 // This file contains the implementation of classes GzipInputStream and
 // GzipOutputStream.
 
-#include "config.h"
 
 #if HAVE_ZLIB
 #include <google/protobuf/io/gzip_stream.h>
 
 #include <google/protobuf/stubs/common.h>
 
 namespace google {
 namespace protobuf {
--- b/toolkit/components/protobuf/src/google/protobuf/stubs/common.cc
+++ a/toolkit/components/protobuf/src/google/protobuf/stubs/common.cc
@@ -31,23 +31,22 @@
 // Author: kenton@google.com (Kenton Varda)
 
 #include <google/protobuf/stubs/common.h>
 #include <google/protobuf/stubs/once.h>
 #include <stdio.h>
 #include <errno.h>
 #include <vector>
 
-#include "config.h"
 
 #ifdef _WIN32
 #define WIN32_LEAN_AND_MEAN  // We only need minimal includes
 #include <windows.h>
 #define snprintf _snprintf    // see comment in strutil.cc
+#elif defined(HAVE_PTHREAD_H)
-#elif defined(HAVE_PTHREAD)
 #include <pthread.h>
 #else
 #error "No suitable threading library available."
 #endif
 
 namespace google {
 namespace protobuf {
 
--- b/toolkit/components/protobuf/src/google/protobuf/stubs/common.h
+++ a/toolkit/components/protobuf/src/google/protobuf/stubs/common.h
@@ -363,71 +363,20 @@
 // or to make sure a struct is smaller than a certain size:
 //
 //   COMPILE_ASSERT(sizeof(foo) < 128, foo_too_large);
 //
 // The second argument to the macro is the name of the variable. If
 // the expression is false, most compilers will issue a warning/error
 // containing the name of the variable.
 
+#define GOOGLE_COMPILE_ASSERT(expr, msg) static_assert(expr, #msg)
-namespace internal {
-
-template <bool>
-struct CompileAssert {
-};
-
-}  // namespace internal
 
-#undef GOOGLE_COMPILE_ASSERT
-#define GOOGLE_COMPILE_ASSERT(expr, msg) \
-  typedef ::google::protobuf::internal::CompileAssert<(bool(expr))> \
-          msg[bool(expr) ? 1 : -1]
 
 
-// Implementation details of COMPILE_ASSERT:
-//
-// - COMPILE_ASSERT works by defining an array type that has -1
-//   elements (and thus is invalid) when the expression is false.
-//
-// - The simpler definition
-//
-//     #define COMPILE_ASSERT(expr, msg) typedef char msg[(expr) ? 1 : -1]
-//
-//   does not work, as gcc supports variable-length arrays whose sizes
-//   are determined at run-time (this is gcc's extension and not part
-//   of the C++ standard).  As a result, gcc fails to reject the
-//   following code with the simple definition:
-//
-//     int foo;
-//     COMPILE_ASSERT(foo, msg); // not supposed to compile as foo is
-//                               // not a compile-time constant.
-//
-// - By using the type CompileAssert<(bool(expr))>, we ensures that
-//   expr is a compile-time constant.  (Template arguments must be
-//   determined at compile-time.)
-//
-// - The outter parentheses in CompileAssert<(bool(expr))> are necessary
-//   to work around a bug in gcc 3.4.4 and 4.0.1.  If we had written
-//
-//     CompileAssert<bool(expr)>
-//
-//   instead, these compilers will refuse to compile
-//
-//     COMPILE_ASSERT(5 > 0, some_message);
-//
-//   (They seem to think the ">" in "5 > 0" marks the end of the
-//   template argument list.)
-//
-// - The array size is (bool(expr) ? 1 : -1), instead of simply
-//
-//     ((expr) ? 1 : -1).
-//
-//   This is to avoid running into a bug in MS VC 7.1, which
-//   causes ((0.0) ? 1 : -1) to incorrectly evaluate to 1.
-
 // ===================================================================
 // from google3/base/scoped_ptr.h
 
 namespace internal {
 
 //  This is an implementation designed to match the anticipated future TR2
 //  implementation of the scoped_ptr class, and its closely-related brethren,
 //  scoped_array, scoped_ptr_malloc, and make_scoped_ptr.
@@ -582,16 +582,27 @@ enum LogLevel {
                      // in the code which calls the library, especially when
                      // compiled in debug mode.
 
 #ifdef NDEBUG
   LOGLEVEL_DFATAL = LOGLEVEL_ERROR
 #else
   LOGLEVEL_DFATAL = LOGLEVEL_FATAL
 #endif
+
+#ifdef ERROR
+  // ERROR is defined as 0 on some windows builds, so `GOOGLE_LOG(ERROR, ...)`
+  // expands into `GOOGLE_LOG(0, ...)` which then expands into
+  // `someGoogleLogging(LOGLEVEL_0, ...)`. This is not ideal, because the
+  // GOOGLE_LOG macro expects to expand itself into
+  // `someGoogleLogging(LOGLEVEL_ERROR, ...)` instead. The workaround to get
+  // everything building is to simply define LOGLEVEL_0 as LOGLEVEL_ERROR and
+  // move on with our lives.
+  , LOGLEVEL_0 = LOGLEVEL_ERROR
+#endif
 };
 
 namespace internal {
 
 class LogFinisher;
 
 class LIBPROTOBUF_EXPORT LogMessage {
  public:
--- b/toolkit/components/protobuf/src/google/protobuf/stubs/hash.h
+++ a/toolkit/components/protobuf/src/google/protobuf/stubs/hash.h
@@ -32,17 +32,16 @@
 //
 // Deals with the fact that hash_map is not defined everywhere.
 
 #ifndef GOOGLE_PROTOBUF_STUBS_HASH_H__
 #define GOOGLE_PROTOBUF_STUBS_HASH_H__
 
 #include <string.h>
 #include <google/protobuf/stubs/common.h>
-#include "config.h"
 
 #if defined(HAVE_HASH_MAP) && defined(HAVE_HASH_SET)
 #include HASH_MAP_H
 #include HASH_SET_H
 #else
 #define MISSING_HASH
 #include <map>
 #include <set>
--- b/toolkit/components/protobuf/src/google/protobuf/stubs/stringprintf.cc
+++ a/toolkit/components/protobuf/src/google/protobuf/stubs/stringprintf.cc
@@ -32,17 +32,16 @@
 
 #include <google/protobuf/stubs/stringprintf.h>
 
 #include <errno.h>
 #include <stdarg.h> // For va_list and related operations
 #include <stdio.h> // MSVC requires this for _vsnprintf
 #include <vector>
 #include <google/protobuf/stubs/common.h>
-#include <google/protobuf/testing/googletest.h>
 
 namespace google {
 namespace protobuf {
 
 #ifdef _MSC_VER
 enum { IS_COMPILER_MSVC = 1 };
 #ifndef va_copy
 // Define va_copy for MSVC. This is a hack, assuming va_list is simply a
--- b/toolkit/components/protobuf/src/google/protobuf/stubs/strutil.h
+++ a/toolkit/components/protobuf/src/google/protobuf/stubs/strutil.h
@@ -332,16 +332,17 @@
     return strtoul(nptr, endptr, base);
   else
     return strtou32_adaptor(nptr, endptr, base);
 }
 
 // For now, long long is 64-bit on all the platforms we care about, so these
 // functions can simply pass the call to strto[u]ll.
 inline int64 strto64(const char *nptr, char **endptr, int base) {
+  static_assert(sizeof(int64) == sizeof(long long), "Protobuf needs sizeof(int64) == sizeof(long long)");
   GOOGLE_COMPILE_ASSERT(sizeof(int64) == sizeof(long long),
                         sizeof_int64_is_not_sizeof_long_long);
   return strtoll(nptr, endptr, base);
 }
 
 inline uint64 strtou64(const char *nptr, char **endptr, int base) {
   GOOGLE_COMPILE_ASSERT(sizeof(uint64) == sizeof(unsigned long long),
                         sizeof_uint64_is_not_sizeof_long_long);
--- a/toolkit/components/protobuf/src/google/protobuf/stubs/strutil.cc
+++ b/toolkit/components/protobuf/src/google/protobuf/stubs/strutil.cc
@@ -33,16 +33,18 @@
 #include <google/protobuf/stubs/strutil.h>
 #include <errno.h>
 #include <float.h>    // FLT_DIG and DBL_DIG
 #include <limits>
 #include <limits.h>
 #include <stdio.h>
 #include <iterator>
 
+#include "mozilla/FloatingPoint.h"
+
 #ifdef _WIN32
 // MSVC has only _snprintf, not snprintf.
 //
 // MinGW has both snprintf and _snprintf, but they appear to be different
 // functions.  The former is buggy.  When invoked like so:
 //   char buffer[32];
 //   snprintf(buffer, 32, "%.*g\n", FLT_DIG, 1.23e10f);
 // it prints "1.23000e+10".  This is plainly wrong:  %g should never print
@@ -51,18 +53,17 @@
 // right thing, so we use it.
 #define snprintf _snprintf
 #endif
 
 namespace google {
 namespace protobuf {
 
 inline bool IsNaN(double value) {
-  // NaN is never equal to anything, even itself.
-  return value != value;
+  return ::mozilla::IsNaN(value);
 }
 
 // These are defined as macros on some platforms.  #undef them so that we can
 // redefine them.
 #undef isxdigit
 #undef isprint
 
 // The definitions of these in ctype.h change based on locale.  Since our
--- b/toolkit/components/protobuf/src/google/protobuf/stubs/type_traits.h
+++ a/toolkit/components/protobuf/src/google/protobuf/stubs/type_traits.h
@@ -107,20 +107,18 @@
 template<> struct is_integral<wchar_t> : true_type { };
 #endif
 template<> struct is_integral<short> : true_type { };
 template<> struct is_integral<unsigned short> : true_type { };
 template<> struct is_integral<int> : true_type { };
 template<> struct is_integral<unsigned int> : true_type { };
 template<> struct is_integral<long> : true_type { };
 template<> struct is_integral<unsigned long> : true_type { };
-#ifdef HAVE_LONG_LONG
 template<> struct is_integral<long long> : true_type { };
 template<> struct is_integral<unsigned long long> : true_type { };
-#endif
 template <class T> struct is_integral<const T> : is_integral<T> { };
 template <class T> struct is_integral<volatile T> : is_integral<T> { };
 template <class T> struct is_integral<const volatile T> : is_integral<T> { };
 
 // is_floating_point is false except for the built-in floating-point types.
 // A cv-qualified type is integral if and only if the underlying type is.
 template <class T> struct is_floating_point : false_type { };
 template<> struct is_floating_point<float> : true_type { };
--- a/toolkit/components/protobuf/src/google/protobuf/wire_format_lite_inl.h
+++ b/toolkit/components/protobuf/src/google/protobuf/wire_format_lite_inl.h
@@ -375,17 +375,17 @@ inline bool WireFormatLite::ReadPackedFixedSizePrimitive(
     void* dest = reinterpret_cast<void*>(values->mutable_data() + old_entries);
     if (!input->ReadRaw(dest, new_bytes)) {
       values->Truncate(old_entries);
       return false;
     }
 #else
     values->Reserve(old_entries + new_entries);
     CType value;
-    for (int i = 0; i < new_entries; ++i) {
+    for (uint32 i = 0; i < new_entries; ++i) {
       if (!ReadPrimitive<CType, DeclaredType>(input, &value)) return false;
       values->AddAlreadyReserved(value);
     }
 #endif
   } else {
     // This is the slow-path case where "length" may be too large to
     // safely allocate.  We read as much as we can into *values
     // without pre-allocating "length" bytes.
--- a/toolkit/components/protobuf/src/google/protobuf/io/zero_copy_stream_impl_lite.h
+++ b/toolkit/components/protobuf/src/google/protobuf/io/zero_copy_stream_impl_lite.h
@@ -39,16 +39,17 @@
 // streams.  Of course, many users will probably want to write their own
 // implementations of these interfaces specific to the particular I/O
 // abstractions they prefer to use, but these should cover the most common
 // cases.
 
 #ifndef GOOGLE_PROTOBUF_IO_ZERO_COPY_STREAM_IMPL_LITE_H__
 #define GOOGLE_PROTOBUF_IO_ZERO_COPY_STREAM_IMPL_LITE_H__
 
+#include <vector> /* See Bug 1186561 */
 #include <string>
 #include <iosfwd>
 #include <google/protobuf/io/zero_copy_stream.h>
 #include <google/protobuf/stubs/common.h>
 #include <google/protobuf/stubs/stl_util.h>
 
 
 namespace google {
diff --git a/toolkit/components/protobuf/src/google/protobuf/stubs/atomicops.h b/toolkit/components/protobuf/src/google/protobuf/stubs/atomicops.h
--- a/toolkit/components/protobuf/src/google/protobuf/stubs/atomicops.h
+++ b/toolkit/components/protobuf/src/google/protobuf/stubs/atomicops.h
@@ -73,17 +73,21 @@ typedef int32 Atomic32;
 typedef int64 Atomic64;
 #else
 typedef intptr_t Atomic64;
 #endif
 #endif
 
 // Use AtomicWord for a machine-sized pointer.  It will use the Atomic32 or
 // Atomic64 routines below, depending on your architecture.
+#if defined(__OpenBSD__) && !defined(GOOGLE_PROTOBUF_ARCH_64_BIT)
+typedef Atomic32 AtomicWord;
+#else
 typedef intptr_t AtomicWord;
+#endif
 
 // Atomically execute:
 //      result = *ptr;
 //      if (*ptr == old_value)
 //        *ptr = new_value;
 //      return result;
 //
 // I.e., replace "*ptr" with "new_value" if "*ptr" used to be "old_value".
